Perhaps you should try some spelling variations:
nuoc luan » luc luan
nuoc san » nguoi san, nuoc quan, nuoc sach
van hanh » van thanh, ban hanh, van anh
cac thuc » cach thuc, cac thu, can thuc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » va thanh, va danh, ban hanh
di cua » dai cua, doi cua, de cua
ve cac » va cac, vien cac
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((nuoc san) or (nuoc luan)) ky nang xa hoi. hieu ve cac thuc ((va hanh) OR (van hanh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nuoc san) OR (nuoc luan)) ky nang xa hoi. hieu ve cac thuc ((va hanh) OR (van hanh)) di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nuoc san) or (nuoc luan)) ky nang xa hoi. hieu ve cac thuc ((va hanh) OR (van hanh)) di cua te".
• Adding a wildcard symbol may retrieve word variants: ((nuoc san) or (nuoc luan)) ky nang xa hoi. hieu ve cac thuc ((va hanh) OR (van hanh)) di cua te*.